Corrugating and bending machine



, in@ Feb' 8 1927' w. J; MCLAUGHLIN s Y CORRUGATING AND BENDING MACHINE Filed July 1:5. 1954/4 2 Sheets-Sheet 1 Feb. s, 1927.

z sheets-snm a w. J. MCLAUGHLIN CORRUGATING AND BENDINGAMACHINE Filed July 1:5. 1925 WML rf ATTORNE j.

Patented Feb. S, lQZY.

WALTER J. MCLAUGHLIN, OF SACRAIVENTQ, CALIFORNIA. y

4connueAfrrNc-f AND Bnnnme MACHINE.

Application iled July 13, 1925. Serial No. 43,10*?.`

' 'ment ofthe crimping rolls to take care of channel sections of varying widthand height,

and further toprovide means for' positively guiding the lchannel sections or vother material being crimped while passing through the crimping rolls. j @ne form which my invention may assume is exemplified in Ythe following description fand illustrated in the accompanying drawings, in which y Fig. 1 is la central vertical longitudinal section of the machine. v i

Fig. v2 is a central vertical cross section. Fig. i3 is a perspective view of a sheet iron channel section ready to be corrugated or crimped.

Fig. 4 vis a perspective view of v'the chan-V nel section Aafter Y ing rollers.-

Fi-g. `5 isl Ia cro-ss section of the guide through which the channel Vsection isfed into the crimping means. j

' Fig vis a perspective View ofa portion of a completed furnace section.

Referring to the drawinssin'detail and particularly Figs. 1 and 2, i. andB indicate a pair of main frames. The lower portion of the frames is provided with foot members 2 and 3, andthese are provided with bolt holes to receive securing bolts as shown. The frame members A and B are Supported on a suitable base plate and this base is slotted as indicated at 4 and 5 t0 permit securing bolts to pass therethrough andvt-o permit adjustment of the mainframes with relation Yto each other; that is, to space the frames closer or fur-ther ,apa-rt.. Journalled in theupper end of the frames A. and B is a driving shaft 6 which may be Adriven by a driving pulley indicated at '7J Keyed :or splineI on the shaft are a pair 4vof bevel pinlpassing through the crimpions Jenrnalled 'in the up er end of the frames A and E are a pair e vertically' .die

i nut 19 on each threaded end.

l may bef-ernefd and the ends joined posed shafts 9 9. These shafts are ,pro- -v vided with bevel pinions '1Q on their upper ends which intermesh with the bevel gears v8 and as such are driven and rotated thereby. Mounted on the lower ends of the shafts and keyed or otherwise secured thereto are bevel pinions 11 and corrugat'ing rolls 15.' Jour-nalled in lthe lower' port-ion Aof the frames A 'and B are tubular shafts 12-12 and secured on their inner ends are bevel gears 13-13 which intermesh with and are ydriven by the pinions 11. Carried by'each `tubular shaft 12 is a shaft 14 and keyed `or otherwise Vsecured on theinner end of lshaft 14 are corrugating rolls 155-. The shafts 12 `and 14 are ldriven in unison through the gears 11 and 13; that is, a `Splined or keyway connection' is for-med between the shafts 12 andf14 asY indicated at 16, and the shafts are thusdriven in unison la-nd so arethecor- Ir'ugati-n-g rolls l'and 15a. By 4referring to Fig 1, it, `will bel noted that a screw adjust# l ment' is provided lon the outer end of the shafts 12and 14. This is important yas'it permits longitudinal adjust-ment of the shafts 14 with relation to the shafts 12. `Such longitudinal adjustment increases for decreasesthe spacing `between the corrugating rolls 15 and 15a and thus permits sheet metal of varying gaugeV or thickness to he passed through the corrugating rollers. 4The screw; adjustment lis obtained byplacing thrust collars 17 on the outer ends of the shafts 12, threading the outer ends of the shafts 14 as at 18, and placing an adjusting The nuts 19 bear against the thrust collars atthe point 2O and they 'also beara-gainst the `ends Vof the shafts 12 yas at 21 ;j hence, if turning movement is imparted to the nuts 19, shaft 14 will move either inwardly or outwardly vas *the vcase 4may be and the spacing between the teeth of the -corrugating rolls will accordinglybe increased or '(lecrea'sed.

'The sheet metal. to be crimped 'or corrugated is usually passed through a brale 'or similarmachine so as to form a bottom secik V'tion 22 (see Fig. and side flan-ges 23-23. A chan-nel section thus'formed is passed be-` tween the crimping rolls `as shown in Fig. 1

and these rolls form -corru'gations such as shownV yat 24 (see Fig. 4). The side flanges are thus not lonly crimped but the bottom section 22 is 'bent Ito form an arc. channel ysection issulliciently `long a ring by weld ing or otherwise securing the same. Channel sections such as shown in Fig. often vary in 'width and it is therefore important to provide an adjustment to take care tliercof. rIhis is accomplished by slotting the base plate as indicated at l and 5 and releasing the nuts 3. The frames A and B may thus be moved together or spread apart as the case may be and practically any width channel section may then be taken care of. It will also be noted that gears 8 are splined to the shaft 6. A driving engagement is thus maintained between the gears 8 and pinions 10. v

For the purpose of properly guiding a. channel section when feeding the same between the crimping rolls, a guide chute generally indicated at D is employed (see F 5). This chute consists of a bottom section 30 and side flanges 3l. The upper ends of the side flanges are turned inwardly 'and `downwardly as at 32, and a guide-way is thus formed for the channel sections shown at 33 which rigidly supports the channelV section as 1t is being fed inwardly betweeny the corrugating rolls. These rolls, by the Way, are nothing more nor less than ordinary bevel gears the teeth of which have been rounded to form corrugations as shown at 24. rllhe length of the teeth on the corrugating rolls is fairly great and varying heights of channel sections will thus be taken care of.

rlhe machine is particularly designed for the purpose of forming ring shaped hollow ducts through which het air or gases are passed, for instance, in the construction of heating furnaces and the` like. After the channel sections have been passed through the crimping rolls and crimped as shown in Fig. 4 an inner section is applied as indicated at 4t() (see Fig. 6), this being welded or otherwise secured thereto, thus forming a ring shaped hollow duct which is substantial in construction and which provides a y large heating area, this yheating area being materially increased by' the crimped side flanges.

The machine may, of course, be used for other purposes, for instance, crimping angle sections and the like, and it may handle material with'practically any gauge or thickness by merely designing the machine to take care of the work or load imposed thereon.

Ii'nportant features of the invention are the adjusting of the corrugating rolls to take care of metal of varying gauge or thickness, to provideA an adjustment which permits channel sections of varying width and height to be taken care of, to provide means whereby the metal to be corrugated is securely held and guided while passing through the corrugating rolls, and further to provide means whereby the curve or racorrugated dius of the bent channel section may be increased if desired. rllhis latter feature is accomplished as follows: Secured on the main frame sections A and B opposite the guide member D is a curved plate l?. A number of these plates may be employed and they are merely bolted to the side flanges 5() of the frames A and B. The crimp ofthe side flanges or the corrugating rolls draws the side flanges together and thereby naturally bend the bottom section of the channel. If it is desired to increase the bend, a curved plate is applied as indicated at F. This receives the forward end of the channel as it comes through the gripping rolls and as its curvature is greater than the natural curvature imparted by the crimping rolls, the crimped 'flanges will be slightly coinpressed and the curve or radius thereof will be increased. If it is desired to still further decrease the curve, another plate suchas shown at l may be applied. It is important that the material should be securely held and supported when fed into the corrugat-v -ing rolls. For this reason, the bottom seetion of thev member D is extended to a point as close to the corrugating rolls as possible, for instance, as shown at 5l in Fig. 2. A second guide plate engaging the top side of. the channel section is also employed as indicated at 52, this being belted Ito the side flanges 53 of the main frames A and B. It was previously stated that channel sections of greater or less width might be handled by the machine and that this was taken care of by separating the main frames A and B. lt is therefore necessary to employ guide members D of varying width and the guide ree members D are therefore detachable with.

relation to the main frames A and B so that they may be readily removed and replaced Y lVhile certain features of the present in vention are more or less specicallyillustrated, I wish it understood that various changes in form and proportion may be resorted to within the scope of the appended claims. I similarly wish it understood that the materials and finish of the several parts employed may be such as the experience and judgment of the manufacturer may dictate or various uses'may demand.

Having thus described my` invention, what I claim and desire to secure4 by Letters Patent ism l. A machine of the character described. comprising a frame, two pairs of corrugating rolls journalled in the frame, the rolls in each pair being 'disposed at right angles to each other, and means for positively driving all the rolls in unison.

2. A machine of the character described, comprising a frame, two pairs of corrugating rolls journalled in the frame, the rolls iie are

to each other, means for positively driv-v ing all the rolls in unison, means whereby the spacing between each pair of rolls may beV increased or decreased, and means wherethe spacing between the rolls in each pair may be increased or decreased.

4. A machine for corrugating the side flanges of metal channel sections andthe like comprising a frame, a guide member through which the channel section is fed, two pairs Vof corrugating rolls, one pair on 'each side of the guide and adapted toreceive the side anges of the channel section, and means for positively driving each pair of iolls in unison. Y

5. A machine for corrugating the side flanges of metal lchannel sections and the likev comprising a frame, a guide member through which the channel section is fed, two pairs of corrugating rolls, one pair on each side of the lguide and adapted to receive the side flanges of the channel section, means for positively driving each Vpair of rolls .in

unison, and means whereby the spacing between the rolls in each pair may be increased or decreased to handle channel sections of varying gauge or thickness. V- Y 1 6. A machine for corrugatingy the side flanges of metal channel sections and the like comprising a frame, a guide'member through which thel channel section is fed, two pairs of corrugating rolls, one pair on each side of the guide and adapted to receive the side flanges of the'channel section, means for positively driving each pair of rolls in unison, means whereby the spacing between the rolls in each pair may be increased or decreased to handle channel sectionsof varying gauge' o r thickness, and means wherebyk the spacing between each Vpair of rolls maybe increased or` decreased to permit channel sections of to feed through' the rolls; v

V7. A machine ofthe character described, comprising a frame, two pairs of corrugating rolls journaled in the frame adapted to receive and corrugate the side walls of a channel-shaped section of iron, and 'a bending plate disposed on the discharge side of the corrugating rolls, said plate adapted to bend the bottom of the'channel iron section and Varying width further compress the'corrugations in the side walls of the channel iron.

8. A machine for corrugating the side flanges of metal channel sections and the like, comprising a. base member, a pair of vertically disposed frame members supported by the base, means for adjusting said frame members to and away from each other, a

cori'ugating roller journalejd in each frame member', a second corrugating Vmember journaled in each. frame member, the corrugating members in each'frame comprising pairs of cooperating corrugating rolls', and means for adjusting the co-rrugating rolls Vin each pair with relation to each other to take care vof metal of varying thickness orvgauge.

9. A machine of theV character described comprising a frame, two .pairs of corrugating rolls journalled in the frame, said rolls having teeth on their peripheral surface which intermesh, and means for positively driving each corrugating roll in each pair, in unison.

l0. In a machine of the character .described, a frame, a pair of corrugating rolls journalled in the frame, vsaid rolls vhaving teeth on their peripheral surfaces which are adapted to yintermesh, and vmeans whereby the rolls are each other.

positively driven, in unison with 

